'JetMan' Will Fly Through Grand Canyon On Jet Pack

Yves Rossy, nicknamed 'JetMan', is a Swiss engineer and aviator. Being the first man to achieve sustained human flight with a jet pack, Rossy has flown across the Geneva river, the Alps, the English Channel, and partway through the Strait of Gibraltar (he had to ditch in the ocean because of bad weather but was unharmed). He is planning another feat on Friday, May 6 this month. This time, he will be flying across the Grand Canyon in Arizona.

Rossy's jet pack is designed by him and straps onto to him like a backpack. It is powered by 4 jet engines modified from model aircraft engines attached to the undersides of the semi-rigid carbon fibre wings. To steer himself, Rossy's body acts as a rudder. Although powerful, the engines are not strong enough for a takeoff on the ground. Therefore, Rossy has to go onboard a plane and then "takeoff" from there.

In his past flights, Rossy has reached speeds of up to 304 km/h (189 mph).

Assuming that I am able to count, this will be Rossy's 5th official flight to date. In my opinion, it takes a lot of guts to strap onto a jet pack and fly across rivers and mountains at unimaginable heights so let's wish wish Rossy good luck for Friday.

Naval-Aerial Power - Carrier Battle Groups

A carrier battle group is a group of ships centred around an aircraft carrier. These groups consist of destroyers, minesweepers, oil tankers, battleships, and other such crafts that are dedicated to protecting the aircraft carrier.

The carrier battle group first originated in WWII when Japan demonstrated the power of the carrier in the Battle of Pearl Harbour. Nowadays, the US Navy operates the largest number of carrier strike groups (US Navy term). Ten groups are based in the US and one is based in Japan.

As an example of the composition of a typical carrier battle group, here's what the French Charles de Gaulle carrier battle group usually consists of:

• the carrier air wing - about 40 aircraft
• a submarine
• two anti-submarine destroyers
• two anti-aircraft destroyers
• one frigate in forward patrol
• one supply ship

Phantom Ray - Future of UAV's?

The Phantom Ray is a stealth unmanned combat aerial vehicle developed by Boeing using company funds and is currently being used as a testbed for UAV technologies. It made its first flight in December last year and is currently being used in a series of 10 test flights over six months involving a myriad of battlefield duties such as surveillance, ground attack, and autonomous in-air refueling.

The Phantom Ray is derived from the X-45C aircraft. It is fairly large, being 36 feet long and having a wingspan of 50 feet (about 4 cars placed horizontally side-by-side). The aircraft weighs about 36 500 pounds and flies at a cruising speed of 614 mph, one-eight of the speed of sound.

The Phantom Ray will not go into service as a combat aircraft but will instead only be used as a testbed. Nevertheless, with its sleek form and white paint job, the Phantom Ray definitely looks like an aircraft of the future.